Revert 182991

tools/telemetry/telemetry/core/extension_dict.py

Index: tools/telemetry/telemetry/core/extension_dict.py
===================================================================
--- tools/telemetry/telemetry/core/extension_dict.py	(revision 182999)
+++ tools/telemetry/telemetry/core/extension_dict.py	(working copy)
@@ -1,25 +0,0 @@
-# Copyright (c) 2012 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-from telemetry.core import extension_to_load
-
-class ExtensionDict(object):
-  """Dictionary of ExtensionPage instances, with extension_id as key"""
-
-  def __init__(self, extension_dict_backend):
-    self._extension_dict_backend = extension_dict_backend
-
-  def __getitem__(self, load_extension):
-    """Given an ExtensionToLoad instance, returns the corresponding
-    ExtensionPage instance."""
-    if not isinstance(load_extension, extension_to_load.ExtensionToLoad):
-      raise Exception("Input param must be of type ExtensionToLoad")
-    return self._extension_dict_backend.__getitem__(
-        load_extension.extension_id)
-
-  def __contains__(self, load_extension):
-    """Checks if this ExtensionToLoad instance has been loaded"""
-    if not isinstance(load_extension, extension_to_load.ExtensionToLoad):
-      raise Exception("Input param must be of type ExtensionToLoad")
-    return self._extension_dict_backend.__contains__(
-        load_extension.extension_id)